
package com.controller;

import com.annotation.IgnoreAuth;
import com.baomidou.mybatisplus.mapper.EntityWrapper;
import com.baomidou.mybatisplus.mapper.Wrapper;
import com.entity.CartEntity;
import com.entity.ShangpinEntity;
import com.entity.YonghuEntity;
import com.entity.view.CartView;
import com.service.CartService;
import com.service.DictionaryService;
import com.service.ShangpinService;
import com.service.YonghuService;
import com.utils.CommonUtil;
import com.utils.PageUtils;
import com.utils.PoiUtil;
import com.utils.R;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import org.springframework.beans.BeanUtils;
import org.springframework.stereotype.Controller;
import org.springframework.web.bind.annotation.*;

import javax.annotation.Resource;
import javax.servlet.http.HttpServletRequest;
import java.io.File;
import java.net.URL;
import java.util.*;

/**
 * 购物车
 */
@RestController
@Controller
@RequestMapping("/cart")
public class CartController {

    private static final Logger logger = LoggerFactory.getLogger(CartController.class);

    @Resource
    private CartService cartService;

    @Resource
    private DictionaryService dictionaryService;

    @Resource
    private ShangpinService shangpinService;

    @Resource
    private YonghuService yonghuService;

    /**
     * 后端列表
     */
    @RequestMapping("/page")
    public R page(@RequestParam Map<String, Object> params, HttpServletRequest request) {
        String role = String.valueOf(request.getSession().getAttribute("role"));
        if ("用户".equals(role))
            params.put("yonghuId", request.getSession().getAttribute("userId"));
        else if ("商家".equals(role))
            params.put("shangjiaId", request.getSession().getAttribute("userId"));
        CommonUtil.checkMap(params);
        PageUtils page = cartService.queryPage(params);

        //字典表数据转换
        List<CartView> list = (List<CartView>) page.getList();
        for (CartView c : list) {
            //修改对应字典表字段
            dictionaryService.dictionaryConvert(c, request);
        }
        return R.ok().put("data", page);
    }

    /**
     * 后端详情
     */
    @RequestMapping("/info/{id}")
    public R info(@PathVariable("id") Long id, HttpServletRequest request) {
        logger.debug("info方法:,,Controller:{},,id:{}", this.getClass().getName(), id);
        CartEntity cart = cartService.selectById(id);
        if (cart != null) {
            //entity转view
            CartView view = new CartView();
            BeanUtils.copyProperties(cart, view);
            //级联表 用户
            YonghuEntity yonghu = yonghuService.selectById(cart.getYonghuId());
            if (yonghu != null) {
                BeanUtils.copyProperties(yonghu, view, new String[]{"id", "createTime", "insertTime", "updateTime", "yonghuId"});//把级联的数据添加到view中,并排除id和创建时间字段,当前表的级联注册表
                view.setYonghuId(yonghu.getId());
            }
            //级联表 商品
            ShangpinEntity shangpin = shangpinService.selectById(cart.getShangpinId());
            if (shangpin != null) {
                BeanUtils.copyProperties(shangpin, view, new String[]{"id", "createTime", "insertTime", "updateTime", "yonghuId"});//把级联的数据添加到view中,并排除id和创建时间字段,当前表的级联注册表
                view.setShangpinId(shangpin.getId());
            }
            //修改对应字典表字段
            dictionaryService.dictionaryConvert(view, request);
            return R.ok().put("data", view);
        } else {
            return R.error(511, "查不到数据");
        }

    }

    /**
     * 后端保存
     */
    @RequestMapping("/save")
    public R save(@RequestBody CartEntity cart, HttpServletRequest request) {
        String role = String.valueOf(request.getSession().getAttribute("role"));
        if ("用户".equals(role))
            cart.setYonghuId(Integer.valueOf(String.valueOf(request.getSession().getAttribute("userId"))));

        Wrapper<CartEntity> queryWrapper = new EntityWrapper<CartEntity>()
                .eq("yonghu_id", cart.getYonghuId())
                .eq("shangpin_id", cart.getShangpinId())
                .eq("buy_number", cart.getBuyNumber());

        logger.info("sql语句:" + queryWrapper.getSqlSegment());
        CartEntity cartEntity = cartService.selectOne(queryWrapper);
        if (cartEntity == null) {
            cart.setCreateTime(new Date());
            cart.setInsertTime(new Date());
            cartService.insert(cart);
            return R.ok();
        } else {
            return R.error(511, "商品已添加到购物车");
        }
    }

    /**
     * 后端修改
     */
    @RequestMapping("/update")
    public R update(@RequestBody CartEntity cart) throws NoSuchFieldException, ClassNotFoundException, IllegalAccessException, InstantiationException {
        cart.setUpdateTime(new Date());
        cartService.updateById(cart);//根据id更新
        return R.ok();
    }

    /**
     * 删除
     */
    @RequestMapping("/delete")
    public R delete(@RequestBody Integer[] ids) {
        cartService.deleteBatchIds(Arrays.asList(ids));
        return R.ok();
    }


    /**
     * 批量上传
     */
    @RequestMapping("/batchInsert")
    public R save(String fileName) {
        try {
            List<CartEntity> cartList = new ArrayList<>();
            int lastIndexOf = fileName.lastIndexOf(".");
            if (lastIndexOf == -1) {
                return R.error(511, "该文件没有后缀");
            } else {
                String suffix = fileName.substring(lastIndexOf);
                if (!".xls".equals(suffix)) {
                    return R.error(511, "只支持后缀为xls的excel文件");
                } else {
                    URL resource = this.getClass().getClassLoader().getResource("static/upload/" + fileName);//获取文件路径
                    File file = new File(resource.getFile());
                    if (!file.exists()) {
                        return R.error(511, "找不到上传文件，请联系管理员");
                    } else {
                        List<List<String>> dataList = PoiUtil.poiImport(file.getPath());
                        dataList.remove(0);//删除第一行，因为第一行是提示
                        for (List<String> data : dataList) {
                            //循环
                            CartEntity cartEntity = new CartEntity();
                            cartList.add(cartEntity);
                        }
                        //查询是否重复
                        cartService.insertBatch(cartList);
                        return R.ok();
                    }
                }
            }
        } catch (Exception e) {
            e.printStackTrace();
            return R.error(511, "批量插入数据异常，请联系管理员");
        }
    }

    /**
     * 前端列表
     */
    @IgnoreAuth
    @RequestMapping("/list")
    public R list(@RequestParam Map<String, Object> params, HttpServletRequest request) {
        CommonUtil.checkMap(params);
        PageUtils page = cartService.queryPage(params);
        //字典表数据转换
        List<CartView> list = (List<CartView>) page.getList();
        for (CartView c : list)
            dictionaryService.dictionaryConvert(c, request);

        return R.ok().put("data", page);
    }

    /**
     * 前端详情
     */
    @RequestMapping("/detail/{id}")
    public R detail(@PathVariable("id") Long id, HttpServletRequest request) {
        CartEntity cart = cartService.selectById(id);
        if (cart != null) {
            //entity转view
            CartView view = new CartView();
            BeanUtils.copyProperties(cart, view);
            //级联表
            YonghuEntity yonghu = yonghuService.selectById(cart.getYonghuId());
            if (yonghu != null) {
                BeanUtils.copyProperties(yonghu, view, new String[]{"id", "createDate"});//把级联的数据添加到view中,并排除id和创建时间字段
                view.setYonghuId(yonghu.getId());
            }
            //级联表
            ShangpinEntity shangpin = shangpinService.selectById(cart.getShangpinId());
            if (shangpin != null) {
                BeanUtils.copyProperties(shangpin, view, new String[]{"id", "createDate"});//把级联的数据添加到view中,并排除id和创建时间字段
                view.setShangpinId(shangpin.getId());
            }
            //修改对应字典表字段
            dictionaryService.dictionaryConvert(view, request);
            return R.ok().put("data", view);
        } else {
            return R.error(511, "查不到数据");
        }
    }

    /**
     * 前端保存
     */
    @RequestMapping("/add")
    public R add(@RequestBody CartEntity cart) {
        Wrapper<CartEntity> queryWrapper = new EntityWrapper<CartEntity>()
                .eq("yonghu_id", cart.getYonghuId())
                .eq("shangpin_id", cart.getShangpinId())
                .eq("buy_number", cart.getBuyNumber())
                ;
        CartEntity cartEntity = cartService.selectOne(queryWrapper);
        if (cartEntity == null) {
            cart.setCreateTime(new Date());
            cart.setInsertTime(new Date());
            cartService.insert(cart);
            return R.ok();
        } else {
            return R.error(511, "表中有相同数据");
        }
    }

}

